Environmental performance reviews : Bulgaria : second review /
United Nations.Economic Commission for Europe.Committee on Environmental Policy.
New York : United Nations,
2000.
"United Nations publication, Sales No. E.01.II.E.5"--T.p. verso.
"ECE/CEP/77"--P. [4] of cover.
Includes bibliographical references (p. 107-108).
Environmental policy
Environmental protection
Environmental law